Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 3/21,91/84,19/43,43/23
Formula to find GCF of Fractions is
GCF = GCF of Numerators/LCM of Denominators
As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators
In the given fractions GCF of Numerators means GCF of 3,91,19,43
Greatest Common Factor of Numerators i.e. GCF of 3,91,19,43 is 1 .
LCM of Denominators means LCM of 21,84,43,23 as per the given fractions.
LCM of 21,84,43,23 is 83076 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 3,91,19,43
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 3
List of positive integer factors of 3 that divides 3 without a remainder.
1,3
Factors of 91
List of positive integer factors of 91 that divides 91 without a remainder.
1,7,13,91
Factors of 19
List of positive integer factors of 19 that divides 19 without a remainder.
1,19
Factors of 43
List of positive integer factors of 43 that divides 43 without a remainder.
1,43
Greatest Common Factor
We found the factors 3,91,19,43 . The biggest common factor number is the GCF number.
So the greatest common factor 3,91,19,43 is 1.
Lets's calculate LCM of 21,84,43,23
3 | 21, 84, 43, 23 |
7 | 7, 28, 43, 23 |
1, 4, 43, 23 |
∴ So the LCM of the given numbers is 3 x 7 x 1 x 4 x 43 x 23 = 83076
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/83076
Therefore, the GCF of Fractions 3/21,91/84,19/43,43/23 is 1/83076
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 21,84,43,23 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(21,84,43,23) = 1
common factors(in case of two or more numbers have common factors) = 21
GCF(21,84,43,23) x common factors =1 x 21 = 21
LCM(21,84,43,23) = ( 21 × 84 × 43 × 23 ) / 21
LCM(21,84,43,23) = 1744596 / 21
LCM(21,84,43,23) = 83076
Here are some samples of GCF of Fractions calculations.
Here are some samples of GCF of Fractions calculations.
1. How to find GCF in Fractions?
Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.
2. What is the GCF of Fractions for 3/21, 91/84, 19/43, 43/23?
Answer: GCF of Numerators as per given numbers 3/21, 91/84, 19/43, 43/23 is
GCF of Numerators i.e. for 3,91,19,43 is 1
LCM of denominators i.e. for 21,84,43,23 is 83076.
Thus, GCF of Fractions is 1/83076.Finally, GCF of Fractions for 3/21, 91/84, 19/43, 43/23 is 1/83076.